Vanek to return to U hockey team for another season

'"He's got more to prove at the collegiate level," Lucia said. "He wants to become a better defensive player. He wants to be able to kill penalties and be out there in the last minute of the game with a one-goal lead. Those are areas he has to take the next step as a player. He understands that, and that's why he wants to return for his sophomore season. Buffalo made a good decision for his future — rather than rushing somebody before they're there and having him lose confidence."'